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A successful first Raspberry Pi Hands On Workshop at Rio Rancho Loma Colorado Public Library

March 1, 2017 Leave a comment

This last weekend (Saturday 2/25), I held my first Introduction to the Raspberry Pi Hands on Workshop at the Loma Colorado Public Library in Rio Rancho, New Mexico.  I had a total of 8 attendees (full house) ranging from youth to adults that wanted to know more about this inexpensive computer.  Feedback was great and it ranged from having a great experience with a new educational computer to interest in physical compute (using the GPIO pins) and more advanced topics.

I am looking forward to refining the content for the future hands on workshops for the following teach dates:

  • March 18, 2017
  • April 8, 2017
  • April 29, 2017
  • May 20, 2017

Don’t forget, if you want to sign up for a workshop, you need to use the Loma Colorado Calendar of Events page.

If you want to see all the Raspberry Pi related posts on my blog, click on this link … https://dompruitt.com/raspberry-pi-rio-rancho-albuquerque-new-mexico/

Here are several pictures from the class:

rpihow1

rpihow2

rpihow3

I also want to thank the City of Rio Rancho and the Loma Colorado Public Library staff, the facility is a great place to teach about technology, the support was awesome to make this event happen, and the internet access speeds are some of the best in the state!

– Dominic

 

Free Raspberry Pi classes at Loma Colorado Public Library in Rio Rancho, New Mexico – #RaspberryPiNM

January 14, 2017 Leave a comment

img_6046

After some back and forth with the local library, I will now be teaching some free Raspberry Pi computer classes at the Loma Colorado Public Library in Rio Rancho, NM starting at the end of February 2017 (#RaspberryPiNM).  Space is limited because this is a hands on event, so keep a eye out for the signup links on the Rio Rancho Public Libraries Calendar of Events page.

The planned dates are as follows:

  • February 25, 2017 (start with 8 students)
  • March 18, 2017
  • April 8, 2017
  • April 29, 2017
  • May 20, 2017

The content of the class will be based on some previous teachings on the Raspberry Pi which I have included here:

rpi-101-presentation

https://dompruitt.com/2016/10/01/raspberry-pi-101-presentation-and-hands-on-station-at-rrps-napac-meeting/

– Dominic

 

Raspberry Pi 3 Chromium Browser with Adobe Flash Player Plugin

October 30, 2016 Leave a comment

Ok, the Raspberry Pi 3 just keeps getting better … especially for kids.

One of the latest updates along with the PIXEL user interface is the new update that added the Chromium browser AND an Adobe Flash Player plugin!  This is better than using Iceweasel which was changed to Firefox recently.  The resulting change drives the processor to a bit above 50% when playing videos, but the bang you get out of these new features is awesome.  Also notice you can easily switch from HDMI or Analog Audio output with the right mouse click on the speaker icon in the system tray.

I tried out the new combinations with YouTube and Starfall (my kids loved this site growing up).

rpi3chromiumytwanalogaudio

If you want the flash components to automatically start you need to check this box on the browser plugins setting page, otherwise you have to right mouse click on the flash puzzle icon and say run every time flash is used.

rpi3chromiumflashpluginsetting

Starfall.com interface below … I’m thinking about how our local Montessori school can use some Raspberry Pi 3 computers to start teaching keyboarding and mousing skills earlier since almost all standardized school testing requires computer proficiency now.

rpi3chromiumstarfall

 

 

 

 

Err Card 2 fixed on Marantz PMD661 with A2.03 Firmware

July 5, 2011 2 comments

I’ve owned a Marantz PMD661 for a while now and I was quite bummed to find I could not use any of my SanDisk 8GB SDHC Class 4 cards at the time (about a year ago).

I tried many things at the time, I formatted the SDHC Card in the Marantz PMD661, which worked, but when I went to record audio, I would get a “Err Card 2” message when I tried to record (or it would error on booting the recorder).

The only solution, buy more 2GB SD Cards to use.  Lately I have seen less and less of them in the stores, so I also recently did a last time buy of about 5 of them figuring that many would allow me to use my recorder for years to come (yes, these flash storage devices do wear out).

Well, it looks like Marantz/D&M Professional finally fixed the SDHC issue for most of the cards out there.  On 6/17/2011 they released a new firmware version (A2.03), the last update I had seen on the website was A1.17.  The firmware update was mostly to address the use of larger capacity SDHC cards.

I installed the new firmware per their instructions (used a 2GB card) and now I can successfully record audio using the SanDisk 8GB SDHC Class 4 cards I’ve had for a while now.  With the 2GB cards, I could record a little over 3 hours of 2 channel audio (cd quality – PCM-16bit, Stereo, 44.1 khz), with the new 8GB cards I can now record over 12.5 hours of audio as seen on this picture to the right (not sure I’ll ever need that much recording time).

Thanks Marantz/D&M Pro for the update!

– Dom

Eagle Creek Tarmac ES 22 Uneven Wheel Wear

November 12, 2010 4 comments

I’ve written about my Eagle Creek Tarmac ES 22 before, talking about the handle screws coming loose.  Now I want to talk a little bit about another thing I’ve discovered about the bag I love to travel with.

One thing I’ve noticed is that the wheels don’t quite track in the same direction with the bag.  Each of the wheels (if looking from the wheel side) point out which causes some uneven wear on the wheels as you can see in the picture below.  Notice the lighter color on the wheel which indicates this is the part that makes contact with the ground.

Because of this, I’ve taken a bit of proactive maintenance on my Tarmac 22 bag.  Since I live in dry and dusty part of the United States, every so often, I take the wheels off to clean and lubricate them.  I also note which side of the wheel was on the inside so I can flip the wheel to wear on the other side.

Removing the wheel involves using a set of pliers and a 5mm allen wrench to unbolt the wheel (you also have to unzip the bag liner).  The wheel is held in place by a bolt and a lock nut (nut with a plastic part to keep it from accidentally coming loose).  I use the pliers to grip the nut since it’s a tight fit.

Once the wheels are off and marked, I clean them with a penetrating lubricant like WD-40.  This clears out any dirt and dust and helps the ball bearings to move freely again.  You will typically find all kinds of dirt and hair on the wheels when you remove them.  Pictured below is a dirty wheel and one that has been cleaned.  Also don’t forget to clean out the wheel well too (pictured above without a wheel).

When all the cleaning is finished, just reverse the procedure to install the wheels.  Remember to flip the wheels so they start wearing on the other half of the wheel.

With a little bit of preventative maintenance you can make the wheels on your Tarmac 22 last as long as possible.  If the bearings ever wear out, I’m sure Eagle Creek will gladly replace the wheels since there is a lifetime guarantee on the bag.

– Dom

PodCampAZ 2010

October 25, 2010 Leave a comment

Just a quick plug about PodCampAZ 2010 coming up here on November 20 & 21, a event I will be attending.

I attended PodCampAZ 2009 last year, really by chance.  I had a weekend free and we were already visiting family in the Phoenix area for the Thanksgiving holidays.

Based on reading the website before the event, I figured I’d get a chance to see what the world of new media and social networking looked like since most of my career was spent in data-center technologies.

The event was free, so there was very little to loose other than time, energy, and being away from my kids for a couple days.

The 2 day un-confernece (this is explained on the website) was really amazing, the power of like-minded people coming together to share information and experiences was eye-opening.  I attended presentations on WordPress, Videocasting, Podcasting, and Social Media software.  I also met so many people who were experts in their respective areas.

There is value in the overall socialness of this event and its ability to bring people who want to share, PodCampAZ is a great place to experience & learn from the talent in the Phoenix area first hand.

– Dom

Hat Mics on the road

September 4, 2010 Leave a comment

I recently went on a San Juan River fly fishing trip with my dad and brothers, my brothers traveled separately, so it was just my dad and I for the 3 hour drive from Rio Rancho to Navajo Dam, NM.

My dad was visiting from Florida for more than a week, so it was a great opportunity to interview him and ask random questions to help me and my kids understand his family history as he knew it.  All total I have about 6 hours of recording just talking with dad, I learned many new things that I did not know before.

Since both my dad and I wear baseball caps, it was a excellent chance to use the Hat Mic technique and my Olympus LS-10 as detailed in a previous post here.

There was a fair amount of road noise in the recording from the Toyota Tundra truck.  I also noticed that the road noise level changed as the truck went over bridges and rougher patches of road.

Here is a sample of the recording so you can hear what this particular setup sounds like.

Enjoy!

– Dom

Direct link to the MP3 audio:  http://tribalgrowth.com/files/2010-09-04_HatMicsOnTheRoad.mp3

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